ToolKnife vs UptimeRobot
Honest comparison. No spin.
TL;DR
T
Use ToolKnife if you want uptime monitoring bundled with invoices, QR tracking, PDF tools, and developer utilities.
U
Use UptimeRobot if uptime monitoring is your primary need. Their free tier monitors 50 URLs, 5x more than ToolKnife.
Bottom line: UptimeRobot is the better standalone monitor (50 free, multi-region, proven at scale). ToolKnife is for freelancers and agencies who also need invoices, tools, and an API.
Feature comparison
| Feature | ToolKnife | UptimeRobot |
|---|---|---|
| Free monitors | 3 | 50 |
| Check interval (free) | 5 min | 5 min |
| Check interval (paid) | 30 sec (Business) | 30 sec (Enterprise) |
| Email alerts | Yes | Yes |
| Webhook alerts | Pro+ | Pro+ |
| Slack alerts | Via webhook | Native integration |
| Public status page | Pro+ | Free (basic) |
| Status badge SVG | Pro+ | Pro+ |
| Multi-region checks | No (single region) | Yes (multiple locations) |
| SSL monitoring | No | Yes |
| Keyword monitoring | No | Yes |
| Additional tools | 290+ (PDF, image, finance, dev...) | Monitoring only |
| REST API | Yes (500+ functions) | Yes (monitoring-focused) |
| MCP server | Yes | No |
Pricing
ToolKnife
Free (3 monitors) / Pro $19/mo (25 monitors + 290 tools) / Business $79/mo (100 monitors)
UptimeRobot
Free (50 monitors) / Pro $7/mo (advanced) / Enterprise custom
Which should you choose?
Choose ToolKnife if...
- You are a freelancer or agency that also needs invoices, QR tracking, and developer tools
- You want one dashboard for monitoring, link analytics, forms, and 290+ tools
- You need a REST API and MCP server for AI agent workflows
- 3-25 monitors is enough for your needs
Choose UptimeRobot if...
- Uptime monitoring is your primary use case
- You need 50+ free monitors
- You need multi-region checks, SSL monitoring, or keyword monitoring
- You want native Slack, PagerDuty, or Opsgenie integrations
Frequently asked questions
Why does UptimeRobot offer 50 free monitors but ToolKnife only 3?
UptimeRobot is a dedicated monitoring service. Monitoring is their only product, so they can afford generous free tiers. ToolKnife bundles monitoring with 290+ other tools, so limits are tighter per feature but you get much more overall.
Does ToolKnife check from multiple locations?
Not yet. ToolKnife checks from a single Hetzner region. UptimeRobot checks from multiple global locations, which reduces false positives from regional network issues. Multi-region is planned for a future release.
Can ToolKnife replace UptimeRobot?
For basic HTTP monitoring with email/webhook alerts and a public status page, yes. If you need multi-region checks, SSL certificate monitoring, keyword/content monitoring, or native Slack integration, UptimeRobot is more capable.
Related tools
Try ToolKnife free
290+ tools, REST API, MCP server. No signup required for the website. API and tracking need a free account.